scholarly journals Diffusion-Weighted Image and Fluid-Attenuated Inversion Recovery Image Mismatch

Stroke ◽  
2014 ◽  
Vol 45 (2) ◽  
pp. 450-455 ◽  
Author(s):  
Bum Joon Kim ◽  
Hye-Jin Kim ◽  
Deok Hee Lee ◽  
Sun U. Kwon ◽  
Sang Joon Kim ◽  
...  
Keyword(s):  
Inversion Recovery ◽  
Diffusion Weighted Image ◽  
Weighted Image ◽  
Diffusion Weighted ◽  
Fluid Attenuated Inversion Recovery ◽  
Inversion Recovery Image

scholarly journals Optimized bias and signal inference in diffusion‐weighted image analysis (OBSIDIAN)

2021 ◽  
Author(s):  
Stefan Kuczera ◽  
Mohammad Alipoor ◽  
Fredrik Langkilde ◽  
Stephan E. Maier
Keyword(s):  
Image Analysis ◽  
Diffusion Weighted Image ◽  
Weighted Image ◽  
Diffusion Weighted

scholarly journals ANALISIS PERBEDAAN CITRA MRI BRAIN PADA SEKUENT1SE DAN T1FLAIR

SINERGI ◽  
2015 ◽  
Vol 19 (3) ◽  
pp. 206
Author(s):  
Nursama Heru Apriantoro ◽  
Christianni Christianni
Keyword(s):  
White Matter ◽  
Gray Matter ◽  
Spin Echo ◽  
Spinal Fluid ◽  
Inversion Recovery ◽  
Field Of View ◽  
Slice Thickness ◽  
Weighted Image ◽  
Mri Brain ◽  
Fluid Attenuated Inversion Recovery

MRI adalah bagian dari ilmu kedokteran untuk mediagnosa kelainan organ dengan memanfaatkan medan magnet dan pergerakan proton atom hidrogen. Salah satu pemeriksaan MRI adalah pemeriksaan brain. Pemeriksaan MRI brain dapat dilakukan T1 weighted image Spin Echo (T1 SE) atau T1 Fluid Attenuated Inversion Recovery (T1 FLAIR). Kajian dilakukan untuk menentukan perbedaan T1 SE dan T1 FLAIR dari segi citra berdasarkan nilai Rasio Signal terhadap Noise (SNR) dengan MRI GE Type Signa HD xt 1.5 Tesla. Penelitian menggunakan pendekatan kuantitatif.  20 pasien  telah diambil pada pemeriksaan MRI brain pada potongan axial, dengan parameter T1 SE potongan axial dengan parameter Time Repetition (TR) 700 ms, Time Echo (TE) 20 ms, Field of View (FOV) 240 mm, Slice Thickness 5,0 mm, Spacing 1,0 mm, Number of Excitations (NEX) 1, Phase 224, dan total slice 20. T1 FLAIR  parameter TR 3000 ms, TE 13,9 ms, TI 920 ms, FOV 240 mm, slice thickness 5,0 mm, spacing 1,0 mm,   NEX 1, phase 224, dan total slice 20. SNR dihitung pada anatomi brain meliputi CSF (Cerebro Spinal Fluid), White Matter dan Gray Matter. Hasil penelitian kedua sequence tersebut menunjukkan bahwa sequence T1 SE lebih baik daripada sequence T1 FLAIR.

Case 14.9

2014 ◽  
pp. 691-692
Author(s):  
Christine U. Lee ◽  
James F. Glockner
Keyword(s):  
Skeletal Muscle ◽  
Rectus Muscle ◽  
High Signal Intensity ◽  
High Signal ◽  
Diffusion Weighted Image ◽  
Third Trimester ◽  
Weighted Image ◽  
The Third ◽  
Diffusion Weighted ◽  
Wall Mass

29-year-old woman who noted an abdominal wall mass during the third trimester of her pregnancy Axial diffusion-weighted image (b=600 s/mm2) (Figure 14.9.1) and sagittal T1-weighted FSE image (Figure 14.9.2) demonstrate a fairly well-defined mass within the rectus muscle with high signal intensity on the diffusion-weighted image and mild hypointensity relative to skeletal muscle on the T1-weighted image. Axial arterial (...

Case 2.25

2014 ◽  
pp. 110-110
Author(s):  
Christine U. Lee ◽  
James F. Glockner
Keyword(s):  
Liver Disease ◽  
Chronic Liver Disease ◽  
Left Lobe ◽  
Chronic Liver ◽  
Diffusion Weighted Image ◽  
Hyperintense Lesion ◽  
Axial Diffusion ◽  
Weighted Image ◽  
Diffusion Weighted

60-year-old woman with chronic liver disease Axial diffusion-weighted image (b=100 s/mm2) (Figure 2.25.1) demonstrates a mildly irregular hepatic contour with parenchymal nodularity and a hyperintense lesion in the medial left lobe. The IP and OP T1-weighted 2D SPGR images (...

Case 1.24

2014 ◽  
pp. 47-49
Author(s):  
Christine U. Lee ◽  
James F. Glockner
Keyword(s):  
Signal Intensity ◽  
Alcoholic Cirrhosis ◽  
Diffusion Weighted Image ◽  
Weighted Image ◽  
Hepatic Lobe ◽  
Diffusion Weighted ◽  
History Of ◽  
And Diffusion

57-year-old man with a history of alcoholic cirrhosis Axial fat-suppressed FSE T2-weighted (Figure 1.24.1) and diffusion-weighted (b=100 s/mm2) (Figure 1.24.2) images demonstrate a peripheral right hepatic lobe mass that has mildly increased signal intensity relative to adjacent liver. Notice the higher signal intensity and greater contrast on the diffusion-weighted image (b=100 s/mm...

Rhombencephalitis in Children: Diffusion Magnetic Resonance Imaging (MRI) Correlation With Clinical Outcomes

2020 ◽  
Vol 35 (6) ◽  
pp. 404-409
Author(s):  
Alex Mun-Ching Wong ◽  
Chih-Hua Yeh ◽  
Jainn-Jim Lin ◽  
I-Jun Chou ◽  
Kuang-Lin Lin
Keyword(s):  
Clinical Outcomes ◽  
Diffusion Weighted Imaging ◽  
Multivariate Logistic Regression Analysis ◽  
Inversion Recovery ◽  
Unfavorable Outcome ◽  
Multivariate Logistic Regression ◽  
Diffusion Weighted ◽  
Disturbance Of Consciousness ◽  
Outcome Group ◽  
Fluid Attenuated Inversion Recovery

In children with rhombencephalitis, neuroimaging abnormalities have been infrequently correlated with clinical outcome. We investigated whether magnetic resonance (MR) neuroimaging studies could predict clinical outcomes and disturbance of consciousness in patients with rhombencephalitis. We retrospectively analyzed the MR studies of 19 pediatric patients with rhombencephalitis (median age: 4.2 years, range 0.5-17; sex: 32% male). Fluid-attenuated inversion recovery imaging and diffusion-weighted imaging findings were graded to create imaging scores according to the extent of imaging abnormality. Clinical outcomes in the first week and 12th month were graded by using Glasgow Outcome Scale scores (1-5) and dichotomized to unfavorable or favorable outcome. Correlations of the imaging scores with the clinical outcomes and with disturbance of consciousness were assessed by using multivariate logistic regression analysis. No significant correlation was found between fluid-attenuated inversion recovery score or diffusion-weighted imaging score ( P = .608, P = .132, respectively) and disturbance of consciousness. In the first week, the unfavorable outcome group (n = 11) had significantly higher diffusion-weighted imaging score than did the favorable outcome group (n = 8) (Mann-Whitney U test, P = .005). Multivariate logistic regression analysis showed that the diffusion-weighted imaging score (odds ratio, 18.182; 95% confidence interval: 1.36, 243.01; P = .028) was significantly associated with unfavorable outcome. In the 12th month, the fluid-attenuated inversion recovery score or diffusion-weighted imaging score ( P = .994, P = .997, respectively) were not significantly associated with unfavorable outcome. Patients with rhombencephalitis who have a higher diffusion-weighted imaging score are more likely to have an unfavorable 1-week clinical outcome.

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